Ahelicopter rises 250 feet in the air, descends 150 feet, and then rises 97 feet. overall, what is the distance the helicopter rises or falls?

This question awards 100 ! i really don’t want to fail i will also mark you !

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers